Vuejs is throwing an uncaught promise error due to a SyntaxError because it encountered an unexpected "<" token at the beginning of a JSON object

I am currently attempting to generate a treemap visualization utilizing data sourced from a .json file. My approach involves employing d3 and Vue to assist in the implementation process. However, upon attempting to import my data via the d3.json() method and logging it to the console, I encounter the following error:

Uncaught (in promise) SyntaxError: Unexpected token < in JSON at position 0

d3.json('./warehouses').then(function(error,data) {
  data = data.concat(json)
  render(data)
  console.log(data)
})
javascriptjsonvue.jsd3.jstreemap

Answer №1

When attempting to load a JSON file, it is necessary to import it into your code. The process involves using the following syntax: 

import jsonData from '../pathToJsonFile/data.json';

After importing, you can utilize the 'jsonData' variable as your JSON object. It's important to remember that you are free to choose any name for your imported JSON data.

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